Neil MacGregor's history of the world recounted through objects at the British Museum arrives in Northern Europe two and a half thousand years ago. Neil explores the early world of the Celts through two bronze drinking flagons, considered to be the most important and earliest examples of Celtic art. The writer Jonathan Meades and one of the world's leading experts on this period, Barry Cunliffe, help describe the Celts, dissect the stereotypes and consider their celebrated love of drink.